Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Homework Help Guidelines for Students and Helpers
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Hey! I posted in homework help but now it's gone!
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Homework Help: Introductory Physics Formulary
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Electric force on the charge kept at the centre of a metallic shell
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32
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201
Puck collision with rod using angular momentum conservation
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29
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216
Placing rock under ladder to stop it from slipping
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10
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130
Motional EMF in the presence of a time-varying magnetic field
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11
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114
A book rests at an angle against one side of a bookshelf...
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2
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Vertical loop problem
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7
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100m dash kinematics problem
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14
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Find the value of ##t## when ##P## returns to ##X##- Kinematics
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17
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253
Please check my understanding of these two questions about Atmospheric Pressure
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5
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87
Electric field at a point close to the centre of a conducting plate
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7
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88
Finding the electric potential above a charged metal toroid (electrostatic lens)
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4
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92
Pressure in a gas container measured with a barometer and a U pipe
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6
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51
AP French Relativity chapter 3 problem
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2
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87
Linear Acceleration of an Object Hanging by a String from a Rotating Wheel
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12
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137
Spring Problem with 3 springs suspending 3 masses in series in an elevator
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9
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125
Plate sliding on ice with friction (Physics competition question)
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2
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41
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336
Pressure of water at the end of faucet coming from an elevated water barrel?
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15
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167
Finding the potential difference in a circuit
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2
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59
Air table puck collision
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3
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75
What does atmospheric pressure have to do with the gauge pressure?
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3
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134
Elevator uniform speed problem
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11
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Relativistic momentum in terms of another relativisic momentum
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6
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110
Unknown symbol help
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5
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102
Physics I problem: Find the work done by a variable Force along a defined path
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23
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325
MIT OCW, 8.02, Electromagnetism: Charged Cylindrical Shell
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7
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112
How does soap water membrane thickness affect surface tension?
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2
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101
Induced polarization for collision between conducting spheres
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4
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129
Flux from magnet (Why is the Flux not zero through the loop?)
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9
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164
At what time after t=0 does the object again pass its initial position?
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19
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181
Acceleration of Uranium 238 ion through a potential difference
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27
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214
Why does this not work? Projectile Motion problem for Dynamics Class
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19
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313
Length element in Ampere's law
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32
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Electrostatic equilibrium problem
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6
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Derivation for capacitance of cylindrical capacitor
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2
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Is there an alternate symbol for mu for x 10^-6 ?
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2
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152
Which of these is correct when the absolute temperature of a gas is doubled?
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12
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Why is temperature constant after gas has expanded?
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33
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Finding ##v## for four particles after being released from square
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24
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259
Finding the final speed of a space probe using work and kinetic energy
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7
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163
Definition of information
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14
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190
Torque calculation for a compound pendulum
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15
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157
Net work and kinetic energy (pushing a wagon to accelerate it)
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1
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140
Measurement of gastrocnemius muscle (attaches to the Achilles tendon) tightness with a special device
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18
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248
Why do we need conservation of energy for a rod accelerating due to magnetic force?
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15
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234
Solving linear charge density from volume charge density using Gauss' Law
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Solved problem: Particle trajectory with fixed angle between acceleration and velocity
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3
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183
Which statement is true? (Velocity and Acceleration of a Tennis Ball)
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2
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68
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Discontinuous voltage graph for bullet going through metal coils
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2
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Another method for Continuous Charge Distributions Electric Potential problem
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13
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169
B-field for a half-infinitely long wire
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9
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188
Manometer Force analysis
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2
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153
Kinematics vs Energy Approach (work done on an accelerating car by the engine)
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11
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187
Max speed of proton in cyclotron
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7
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154
Finding velocity for projectile given distances and launch angle
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3
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173
Graphing electric potential for two positive charges
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16
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186
Fictitious forces on a rigid body
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9
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213
Which system to apply conservation of momentum to?
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2
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164
How do I find way of comparing the density of the Earth and the Moon?
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9
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196
Simple harmonic motion for an electric dipole in a uniform electric field
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124
Electrostatics homework problem help
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12
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595
Integrating electric field of rod
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25
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319
I cannot work out constants a and b -- please help
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4
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188
Dynamic circular motion
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6
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174
Work is done against friction
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11
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258
Average force when a bouncy ball collides with surface
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23
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812
Atmospheric muons' lifetime
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11
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203
Finding equivalent capacitance
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6
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209
Standing wave, phase and antiphase
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7
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228
Difference in Wave Phase Question
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8
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Volume-pressure equation for an expanding ideal gas
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10
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224
Vector equations for adding speeds while switching frames of reference in Galilean physics
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17
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Calculate the distance a projectile travels using a rough approximation (Hooke's Law) for a slingshot
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35
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Determining if a pipe is open or closed from given the resonant frequencies
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9
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When is power constant in this scenario?
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25
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282
Ideal gas problem -- What is the volume of the gas when its temperature is maximum?
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3
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What is the electric field strength inside the capacitor?
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What exactly is wrong here? (F=ma when Force and acceleration are zero)
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The Physics of Light and Sound
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8
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Areal velocity formula
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2
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Heating up of tyres on the road
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30
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330
Proving SHM for charged spring mass system in electric field
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2
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181
Electric field at surface of lead-208 nucleus
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2
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Unit conversion question
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11
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242
When is Torricelli’s Law an Approximation?
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6
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416
Springs: Force vs. Energy
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Finding value of unknown charge
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The Mass of a Black Hole versus its volume
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6
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Given a Constant Acceleration magnitude of g/4, Find the value of t
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6
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220
Using Kirchhoff's law, deduce the value and direction of the current
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6
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244
Circular Motion with Decreasing Radius
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8
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241
Rotation and torque about an accelerating point
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6
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225
Conductor rolling down an inclined plane in a vertical B-field
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32
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316
Why optical pyrometer gives a low reading?
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19
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245
Force between 2 point charges in VECTOR format (x i + y j + z k)
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17
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Coordinates of a point on a rotating wheel
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3
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246
Perfectly elastic collision between two electrons in ⊥ B-field
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6
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241
Shannon Entropy -- Calculate the information content of a DNA base pair
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5
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276
Magnetic Field Due to a Curved Wire Segment
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4
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227
Pulley with friction, how to get the friction in the pulley?
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23
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297
Finding the weight of an object submerged in water
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17
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303

Intro Physics Homework Help

Get introductory physics homework help, step by step from mentors. We do not give answers but guide you to it with your effort.

This is for algebra and calculus based general physics homework. Usually this is high school and undergraduate level problems.

Please use the template when asking for help, include all information and provide a reasonable attempt at a solution.

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